Hi zhangtianyang,

FYI, the error/warning still remains.

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 31c4fffa86e17e8a946c944e91e7412db7f8427b commit: c93eb12529e21dbb59796132f4fdf75fad4eddaf [1610/1610] LoongArch: Adapted SECTION_SIZE_BITS with page size config: loongarch-randconfig-001-20241209 (https://download.01.org/0day-ci/archive/20241209/202412091235.rrPD4MTM-lkp@i...) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241209/202412091235.rrPD4MTM-lkp@i...)

If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot lkp@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202412091235.rrPD4MTM-lkp@intel.com/

All errors (new ones prefixed by >>):

In file included from include/linux/gfp.h:7, from include/linux/mm.h:7, from arch/loongarch/kernel/asm-offsets.c:9:

...

include/linux/mmzone.h:1788:2: error: #error Allocator MAX_ORDER exceeds SECTION_SIZE

1788 | #error Allocator MAX_ORDER exceeds SECTION_SIZE | ^~~~~ arch/loongarch/kernel/asm-offsets.c:18:6: warning: no previous prototype for 'output_ptreg_defines' [-Wmissing-prototypes] 18 | void output_ptreg_defines(void) | ^~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:65:6: warning: no previous prototype for 'output_task_defines' [-Wmissing-prototypes] 65 | void output_task_defines(void) | ^~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:80:6: warning: no previous prototype for 'output_thread_info_defines' [-Wmissing-prototypes] 80 | void output_thread_info_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:96:6: warning: no previous prototype for 'output_thread_defines' [-Wmissing-prototypes] 96 | void output_thread_defines(void) | ^~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:132:6: warning: no previous prototype for 'output_thread_fpu_defines' [-Wmissing-prototypes] 132 | void output_thread_fpu_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:173:6: warning: no previous prototype for 'output_thread_lbt_defines' [-Wmissing-prototypes] 173 | void output_thread_lbt_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:183:6: warning: no previous prototype for 'output_mm_defines' [-Wmissing-prototypes] 183 | void output_mm_defines(void) | ^~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:215:6: warning: no previous prototype for 'output_sc_defines' [-Wmissing-prototypes] 215 | void output_sc_defines(void) | ^~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:223:6: warning: no previous prototype for 'output_signal_defines' [-Wmissing-prototypes] 223 | void output_signal_defines(void) | ^~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:261:6: warning: no previous prototype for 'output_smpboot_defines' [-Wmissing-prototypes] 261 | void output_smpboot_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:283:6: warning: no previous prototype for 'output_fgraph_ret_regs_defines' [-Wmissing-prototypes] 283 | void output_fgraph_ret_regs_defines(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/loongarch/kernel/asm-offsets.c:294:6: warning: no previous prototype for 'output_kvm_defines' [-Wmissing-prototypes] 294 | void output_kvm_defines(void) | ^~~~~~~~~~~~~~~~~~ make[3]: *** [scripts/Makefile.build:116: arch/loongarch/kernel/asm-offsets.s] Error 1 shuffle=2238233371 make[3]: Target 'prepare' not remade because of errors. make[2]: *** [Makefile:1202: prepare0] Error 2 shuffle=2238233371 make[2]: Target 'prepare' not remade because of errors. make[1]: *** [Makefile:234: __sub-make] Error 2 shuffle=2238233371 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:234: __sub-make] Error 2 shuffle=2238233371 make: Target 'prepare' not remade because of errors.

vim +1788 include/linux/mmzone.h

d41dee369bff3b Andy Whitcroft 2005-06-23 1783 835c134ec4dd75 Mel Gorman 2007-10-16 1784 #define SECTION_BLOCKFLAGS_BITS \ d9c2340052278d Mel Gorman 2007-10-16 1785 ((1UL << (PFN_SECTION_SHIFT - pageblock_order)) * NR_PAGEBLOCK_BITS) 835c134ec4dd75 Mel Gorman 2007-10-16 1786 23baf831a32c04 Kirill A. Shutemov 2023-03-15 1787 #if (MAX_ORDER + PAGE_SHIFT) > SECTION_SIZE_BITS d41dee369bff3b Andy Whitcroft 2005-06-23 @1788 #error Allocator MAX_ORDER exceeds SECTION_SIZE d41dee369bff3b Andy Whitcroft 2005-06-23 1789 #endif d41dee369bff3b Andy Whitcroft 2005-06-23 1790

:::::: The code at line 1788 was first introduced by commit :::::: d41dee369bff3b9dcb6328d4d822926c28cc2594 [PATCH] sparsemem memory model

:::::: TO: Andy Whitcroft apw@shadowen.org :::::: CC: Linus Torvalds torvalds@ppc970.osdl.org